Results 11 to 20 of about 18,898 (219)
Analysis of development situation and countermeasures of high quality safety in open-pit coal mines
Meikuang Anquan, 2022 In order to further promote the development of open-pit coal mines with high quality and safety, increase the proportion of open-pit coal output, and enhance the overall level of safety production in China’s coal mines, the analysis of the development ...
ZHAO Hao
doaj +1 more source
Research status and development trend of compressed air energy storage in abandoned coal mines
Meitan kexue jishu, 2023 Compressed air energy storage (CAES) has the advantages of low construction cost, small equipment footprint, long storage cycle and environmental protection.
Tongbin ZHAO +5 more
doaj +1 more source
Shock and Vibration, 2021 The complex mechanical environment of deep coal and rock masses leads to obvious changes on their dynamic mechanical properties. However, there are few reports on the dynamic mechanical properties of rocks under the combined action of medium temperature (
Enlai Zhao +4 more
doaj +1 more source
Advances in Civil Engineering, 2022 Recently, the holding states of nanoindentation experiments have been widely used to analyze the time-dependent deformations of various rocks, and the dynamic mechanical analysis (DMA) method seems to be more applicable than the quasi-static mechanical ...
Jiahui Xu +4 more
doaj +1 more source
Development and prospect of environmental treatment and ecological restoration of closed coal mines [PDF]
E3S Web of Conferences, 2021 The exploitation of coal mine resources has greatly contributed to China’s economic development, but it has also caused damage to the surrounding ecological environment. With the adjustment and optimization of the national energy structure, many small or
Qiao Guichuan +4 more
doaj +1 more source
Mechanism and Control Technology of Water Inrush Caused by Bandoned Coal Mines
Meikuang Anquan, 2020 To eliminate the threat of water disasters from abandoned coal mines to nearby productive coal mines, by investigating the mining spatial relationship between abandoned coal mines, surface water bodies and productive coal mines and occurrence conditions ...
LI Yanqing, ZHAO Huajie, XIA Kangsheng
doaj +1 more source
Atmosphere, 2023 The venting of methane from coal mining is China’s main source of methane emissions. Accurate and up-to-date methane emission factors for coal mines are significant for reporting and controlling methane emissions in China. This study takes a typical coal
Xueli Zhang +7 more
doaj +1 more source
Research status and reduction strategies of methane emissions from closed/abandoned coal mines
Meitan xuebao, 2023 With the global transition to a low-carbon energy structure, coupled with the depletion of coal mine resources, gas disasters, and other problems, the number of closed/abandoned coal mines is increasing rapidly.
Yunpei LIANG +5 more
doaj +1 more source
Geofluids, 2021 Solid waste backfill mining can effectively deal with gangue and other mining wastes, as well as control the movement and damage of rock strata. In this paper, the RFPA2D rock failure process analysis software is used to study the fracture evolution and ...
Qiang Sun +5 more
doaj +1 more source
Characteristics and contributing factors of major coal bursts in longwall mines
Energy Science & Engineering, 2022 Coal burst has become one of the most serious hazards in longwall coal mines of many countries, and extensive studies have been conducted on the mechanism, prediction, and prevention of coal bursts.
Wusheng Zhao +3 more
doaj +1 more source